The problem is low flow rates in the Alaskan Pipeline. More drilling in the L48 will NOT bring more oil through the Alaskan pipeline.
Is your suggestion to abandon the Alaskan Pipeline and leave the remaining North Slope oil unproduced?
Active drilling in the lower 48 is at a rather high rate:
No... Make up the lost flow with oil in the lower 48 so we have backup. Take the Alaskan pipeline down, upgrade then bring it back online. Also stop exporting gasoline which will help.